Is this relation a function? Justify your answer.
A. No, because two points with the same y-value have different x- values.
B. Yes, because every x-value corresponds with a single y-value.
C. Yes, because every x- and y-value is positive.
D. Yes, because the number of x-values is the same as the number of y-values.
Answers
Answer:
the answer is b
Step-by-step explanation:
Related Questions
Which statement is true about this quadratic equation?
y = 12 – 110 + 7
=
OA.
There is one complex solution.
ОВ.
There is one real solution.
Ос.
There are two complex solutions.
OD.
There are two real solutions.
Answers
Answer:
i think B
Step-by-step explanation:
because is right
Answer:
D
Step-by-step explanation:
[tex]y=x^2-11x+7[/tex]
we need to calculate [tex]\Delta = \sqrt{b^2-4ac}[/tex]
and if [tex]\Delta[/tex] is positive we have 2 distinct roots
if [tex]\Delta[/tex] is 0 then we have two identical roots.
If [tex]\Delta[/tex] < 0 then we have two complex solutions.
in this case, [tex]\Delta = \sqrt{11^2-4*7} = \sqrt{121-28}>0[/tex]
the answer is D
A. Only Sequence A
B. Only Sequence B
C. Both
D. Neither
Answers
Answer:
Only sequence a is your answer
Step-by-step explanation:
Yasmien wants to give her friends 3/4 of a banana cake in her birthday party .She was able to bake 12 banana cake.How many people can share the banana cake?
Answers
Answer:
She can share it with 9 people
Step-by-step explanation:
75% of 12 =9
50% of 12= 6
25% of 12= 3
A race car is traveling at 120 mph. At this rate,
how long will a race of 1500 miles take?
Answers
Answer: 12:30:00
Step-by-step explanation:
Trey runs 3 miles in 25 minutes. At the same rate, how many miles would he run in 20 minutes?
Answers
Answer:
Step-by-step explanation:
Set up a proportion.
3/25 = x / 20 Notice that both times are in the denominators. Be sure you always set up a proportion that way. Like units in the denominator. Like units in the numerator.
Cross multiply
3 * 20 = 25 * x Combine
60 = 25x Divide by 25
60/25 = x
x = 2.4 miles in 20 minutes.
Answer:
In 20 minutes, Trey would run 2.4 miles.
Step-by-step explanation:
20x = 25
x = 4/5
This means we multiply the number by 0.8
3 * 0.8 =
3/25 = 2.4/20
2.4 miles / 20 minutes
) 9 mini flashlights cost $7.02. If the flashlights all cost the same amount, how much does
each flashlight cost?
Answers
Answer:
$1.28 each
Step-by-step explanation:
9 / $7.02 = $1.28
Answer:
each flashlight costs 0.78$
Step-by-step explanation:
Since we know that 9 flashlights costs 7.02$ then all we need to do is divide 7.02 by 9 and we get .78 so the cost of one flashlight is 0.78 cents
solve 0+x^2-10x+30 by completing the square
Answers
Answer:
See answer below
Step-by-step explanation:
x² - 10x + 30 = 0
x² - 10x = -30
x² - 10x + 25 = -30 +25 1/2 of the x term and square that number and add to
both side.
x² -10x + 25 = -5
(x - 5)(x - 5) = -5
[tex]\sqrt{(x-5)(x-5)^2}[/tex] = [tex]\sqrt{-5}[/tex]
If you are in Algebra II , then the answer is not a real answer it will be
(x - 5)² = ±5i
PLEASE HELP, I'LL GIVE BRAINLIEST!!!
Answers
HELP ASAP! WILL MARK BRAINLIEST!! 50 POINTS!!
Answers
Answer:
P = n * t * (S - C) - H - (n * W)
n = (P + H) / (tS - tC - W)
Step-by-step explanation:
n = number of employees to be hired
P = profit
W = employee wages per day
t = average toys made by each employee per day
S = selling price of each product
C = cost price of each product
H = daily overhead costs
Equation for profit is selling price - cost price for all the toys made for that day
which is no. of employees * t * (S - C)
we will also cut daily overhead costs from profit
and also daily wages for all employees
P = n * t * (S - C) - H - (n * W)
Now we have to find n based on other factors / variables
P = ntS - ntC - H - nW
P = n (tS - tC - W) - H
P + H = n (tS - tC - W)
n = (P + H) / (tS - tC - W)
3,75 km + 24,1 hm - 8,6 dam =
Answers
Answer:
26.578 km
Step-by-step explanation:
24.1 hm is 2.41 km and 8.6 dam is 0.068 km.
Use graphing technology to find the range of the function f(x)=-x^2+4.f(x)=−x
2
+4.
Answers
Answer:
The set of Real numbers
Step-by-step explanation:
x² + 4 is a parabola with the lowest point on the y-axis is 4 and continues up
-x² + 4 is a parabola with the highest point on the y-axis is 4 and continues down.
The range is the distance traveled on the y- axis.
All real numbers.
Abigail has 1 7/8 cups of powdered sugar. She sprinkles 1/2 of the sugar onto a plate of
brownies and sprinkles the rest onto a plate of lemon cookies. How much sugar does Abigail
sprinkle on the brownies?
Answers
1 7/8 is equivalent to 8/8 + 7/8
Divided by 2 for the half is
4/8 + 7/16 (7/8 cannot be divided evenly)
Common denominator
8/16+7/16= 15/16
Check: 15/16+15/16 = 30/16 = 15/8 = 1 7/8
$15/ hour at job "a", $12/ hour at job "b", how many hours at each job to earn $360
Answers
Answer:
Step-by-step explanation:
24 hrs for a and 30 hrs for b to earn $360
Please help for brainliest!!
Answers
While the graph is going left, it is decreasing. While the graph is going right, it is increasing.
So, the answer is C
Answer:
C
Step-by-step explanation:
What is the slope of the red line
Answers
Answer:
1/2
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
Find the midpoint of the segment with the given endpoints (-5,-9) and (-9,-3)
Answers
Answer:
(-7,-6)
Step-by-step explanation:
[tex]x = \frac{ -5 - 9}{2} = - 7 \\ \\ y = \frac{ - 9 - 3}{2} = - 6 \\ [/tex]
A rectangular room is four times as long as it is wide, and its perimeter is 90 meters. Find the width of the room.
Answers
The explanation is in the picture
Equations and inequalities
Answers
Answer:
BTS ARMY forever
my first bias was Jimin
my first bias wrecker was Jungkook
my current bias is Taehyung
my current bias wrecker are Suga and Jimin
I love BTS and u?
Please help I’m stuck on this question
Answers
Answer:
Y = 1/2x because for every two spots move to the right on the x-axis you need to move up one on the y-axis
(c). It is well known that the rate of flow can be found by measuring the volume of blood that flows past a point in a given time period. The volume V of blood flow through the blood vessel is V = =[₁2πvr dr where v= K (R² − r²) is the velocity of the blood through a vessel. In the velocity of the blood through a vessel, K is a constant, the maximum velocity of the blood, R is a constant, the radius of the blood vessel and r is the distance of the particular corpuscle from the center of the blood vessel.
(i) If R = 0.30 cm and v= (0.30-3.33r²) cm/s, find the volume.
(ii) Construct and develop a general formula for the volume of the blood flow. [Verify your answer by MATHEMATICA and attach the printout of the commands and output
Answers
(i) Given that
[tex]V(R) = \displaystyle \int_0^R 2\pi K(R^2r-r^3) \, dr[/tex]
when R = 0.30 cm and v = (0.30 - 3.33r²) cm/s (which additionally tells us to take K = 1), then
[tex]V(0.30) = \displaystyle \int_0^{0.30} 2\pi \left(0.30-3.33r^2\right)r \, dr \approx \boxed{0.0425}[/tex]
and this is a volume so it must be reported with units of cm³.
In Mathematica, you can first define the velocity function with
v[r_] := 0.30 - 3.33r^2
and additionally define the volume function with
V[R_] := Integrate[2 Pi v[r] r, {r, 0, R}]
Then get the desired volume by running V[0.30].
(ii) In full, the volume function is
[tex]\displaystyle \int_0^R 2\pi K(R^2-r^2)r \, dr[/tex]
Compute the integral:
[tex]V(R) = \displaystyle \int_0^R 2\pi K(R^2-r^2)r \, dr[/tex]
[tex]V(R) = \displaystyle 2\pi K \int_0^R (R^2r-r^3) \, dr[/tex]
[tex]V(R) = \displaystyle 2\pi K \left(\frac12 R^2r^2 - \frac14 r^4\right)\bigg_0^R[/tex]
[tex]V(R) = \displaystyle 2\pi K \left(\frac{R^4}2- \frac{R^4}4\right) [/tex]
[tex]V(R) = \displaystyle \boxed{\frac{\pi KR^4}2} [/tex]
In M, redefine the velocity function as
v[r_] := k*(R^2 - r^2)
(you can't use capital K because it's reserved for a built-in function)
Then run
Integrate[2 Pi v[r] r, {r, 0, R}]
This may take a little longer to compute than expected because M tries to generate a result to cover all cases (it doesn't automatically know that R is a real number, for instance). You can make it run faster by including the Assumptions option, as with
Integrate[2 Pi v[r] r, {r, 0, R}, Assumptions -> R > 0]
which ensures that R is positive, and moreover a real number.
Nico has $11.50 deducted from his weekly paycheck for health care. If his employer pays 90% of the premium, how much is his annual premium ?
A) $5980
B) $2990
C) $665
D) $115
Answers
Answer:
Nico's annual premium is A) $5980.
Nico has $11.50 deducted from his weekly paycheck for health care.
So,
Nico's annual deduction are:
Since there are 52 weeks in a year.
So,
11.50*52=$598
His employer pays 90% of the premium, means Nico pays 10%.
And $598 is 10% of total annual premium.
Let annual premium is x.
10%of x =$598
10/100*x=$598
x=$598*10
x=$5980
Hence, Nico's annual premium is $5980
Multiply (x + 1)
x2+1
x2+x+2
x2+x+1
x2+2x+1
Answers
Answer:
x
3
−
1
Step-by-step explanation:
Answer:
It's D
Step-by-step explanation:
what is 6 to the 2 power -4 divided by 2 simplified'
Answers
Answer:
36 and 34
Step-by-step explanation:
Not sure what youre asking...but 6 power 2 is 36 and -4 divided by 2 is 34.
If you are asked to take 6 and multiply it by 2, you are really doubling 6. In other words, 6 times 2 is like saying you have two 6's. Together, two 6's make 12. So, 6*2 = 12.
When you take 6 and square it (raise it to the power of 2), you are taking 6 and multiplying it by itself. So, 62= 6*6 = 36.
Using the same logic, you can see how this works for other powers.
61 = 6
62 = 6*6
63 = 6*6*6
64 = 6*6*6*6
etc...
Hope this helps
I thought that I would help explain the laws of exponents a little more for you. It might help you in your future studies.
Using an exponent just saves you the time of writing out lots of multiples. In your example, 6^2=6×6
You can also solve problems involving exponents on a graphing calculator by entering the base, followed by the caret key ^, enter the power, and then press enter. In your case, you would enter it into your calculator like this, 6^2.
For future reference, just remember
The exponent tells you how many times you need to multiply the number
And if you see a negative exponent, it just means to divide 1 by the number, because the opposite of multiplying is dividing (for example, if you had 6^(-2), it would look like this, 6^(-2)= 1 ÷ 6 ÷ 6=0.027778 or enter it into your graphing calculator like so, 6^+/-2 You may have a +/- button or just a – button. Remember, this is not the subtract button!
I hope this was useful! Good luck!
Find the geometric mean of 2 and 98. pls explain how to solve this in steps
Answers
============================================================
Work Shown:
[tex]m=\text{geometric mean of x and y}\\\\m = \sqrt{x*y}\\\\m = \sqrt{2*98}\\\\m = \sqrt{196}\\\\m = \sqrt{14^2}\\\\m = 14\\\\[/tex]
The geometric mean of two numbers has us do two steps in this order
Multiply the valuesApply the square rootThe geometric mean can be applied to more than two values. Regardless of how many values you have, you always multiply them out. However, the number of values will tell you what kind of root you'll take (eg: 3 values leads to a cube root; 4 values means you'll take a fourth root, etc).
Evaluate
1.50
Enter your answer as a decimal in the box
Answers
Answer
3.375
step by step explanation
Answer:
1.5^3
= ( 15 / 10 ) ^ 3
= 3375 / 1000
= 3.375
Use the drawing tools to form the correct answers on the provided dot plot.
Create a dot plot of the data on the average cruising speeds of Red Eagle's planes.
0.78
0.85
0.85
0.80
0.84
0.83
0.79
0.83
0.81
0.84
0.82
0.82
0.86
0.83
0.84
0.83
0.85
0.85
0.81
0.80
0.82
0.84
0.83
0.82
0.87
0.85
0.84
0.81
0.82
0.86
Drawing Tools
Delete Undo
Reset
Select
• Point
0.78
0.80
0.86
0.88
0.82 0.84
Average Cruising Speed
Answers
Answer:
hold on
Step-by-step explanation:
do you have options?
So on solving the provided question we can say we can plotting data by x = 0.83; y = 0.79; z = 0.83
Here, we have,
The most typical approach to display data using a chart is a graph that shows the relationship between two additional variables.
Diagrams created by hand or on a computer are also acceptable.
Move 2 units to the right after starting at the origin before going 3 units up.
The coordinates for the points 2, 3, should be shown on the coordinate plane. Clearly state your points.
The pink dot with the letter P thus stands for 2.3.
Before creating a line chart, you need first generate a number line for each value in your data collection.
Put an X (or dot) over each value of the data on the number line after that. For each instance when a value appears in a record, place an X over the corresponding number.
x = 0.83
y = 0.79
z = 0.83
xa = 0.85
ya = 0.85
za = 0.85
To know more about plotting data visit:
brainly.com/question/29096917
#SPJ4
Kai drives at a speed of 115km/h. Ottawa is 432 from Mississauga. How long should it take for Kai to get to Ottawa?
Show all of your work.
Answers
Answer:
3.8 hrs
Step-by-step explanation:
Hello!
All you gotta do is 432/115 which should give 3.8
Chris has a balance of $54 in his account. he earns $9 per hour at the movie theatre. how many hours will he need to work for his balance to be zero?
Answers
Answer:
6 hours
Step-by-step explanation:
I assume the balance is on a credit card. He needs to pay off the $54.
He earns $9/hour.
$54/($9/hour) = 6 hours
In 6 hours he earns $54, and he can pay $54 to zero his balance.
Answer: 6 hours
from 5x² - 6x + 8, subtract 3x² - 2x - 4
Answers
Answer:
2x^2-4x+12
Step-by-step explanation:
5x^2-6x+8-(3x^2-2x-4)
5x^2-6x+8-3x^2+2x+4
2x^2-4x+12
There are 200 adults and 300 children at a zoo. The zoo
makes a total of $7000 from the entrance fees, and the
cost for an adult and child to attend is $30. How much
does an adult ticket (x) and child's ticket (y) cost?
Answers
Answer: 30
Step-by-step explanation:
200a+300c=7000
a+c=30
